Truglo Ignite Mini Compact Red Dot 22mm 2 MOA Green Dot Black. It utilizes digital push-button brightness controls 10 brightness settings and remembers last used brightness settings. The red dot is constructed of aluminum with nitrogen filled glass low and high Picatinny/Weaver rail mounts and rubber lens cover. Specifications for Truglo TG8322GN Ignite Mini Compact Red Dot 22mm 2 MOA Green Dot Black: Manufacturer: TruGlo Finish: Black Fabric/Material: Aircraft-Grade Aluminum Magnification: 1 x Objective Lens Diameter: 22 mm Reticle: Green Dot Eye Relief: Unlimited Emitter Type: Enclosed Optical Coating: Multi-Coated Battery Type: AAA Magnification Type: Fixed Red Dot Sights-Footprint: Not Applicable Caliber: 8x22mm Nambu Package Contents: Truglo TG8322GN Ignite Mini Compact Red Dot 22mm 2 MOA Green Dot Black Truglo TG8322GN Ignite Mini Compact Red Dot 22mm 2 MOA Green Dot Black